{"id":2283669,"url":"https://alion.io/job/ownest-developpeurse-back-end-node-js-stagealternance","title":"Développeur(se) Back-end Node.js [Stage/Alternance]","company":{"id":4011184,"name":"Ownest","domain":"ownest.io","url":"https://alion.io/company/ownest-io","size_band":null,"is_staffing_agency":false,"employer_type":"direct","is_intermediary":false,"listed_via":null,"ats_vendor":"Schema","truth_index":null},"role":"Backend","role_family":"Backend","seniority":null,"employment_type":"internship","work_mode":"on_site","remote_scope":null,"remote_scope_basis":null,"remote_working_hours":null,"hiring_geo_confidence":"structured","locations":[],"countries":[],"hiring_countries":[],"hiring_countries_total":0,"salary":null,"salary_estimate":null,"experience_years_min":null,"visa_sponsorship":false,"relocation_package":false,"has_equity":false,"technologies":[{"name":"Ethereum","optional":false},{"name":"Express","optional":false},{"name":"JavaScript","optional":false},{"name":"Linux","optional":false},{"name":"Nest.JS","optional":false},{"name":"Nginx","optional":false},{"name":"Node JS","optional":false},{"name":"Rest API","optional":false},{"name":"TypeScript","optional":false},{"name":"Web3.js","optional":false}],"status":"live","first_seen_at":"2026-10-11T12:42:45Z","employer_posted_date":"2023-03-28","last_verified_at":"2026-10-30T02:53:39Z","board_verified":false,"closed_at":null,"days_open":20,"trust":{"level":"ok","repost_count":null,"flags":[],"days_open":20},"description":"retour à la liste des offres d'emploi\n\nL’entreprise\nOwnest est une start-up proposant une solution blockchain de transfert de responsabilité, qui permet de visualiser en temps réel les responsables des biens sur les réseaux logistiques.\nLes clients et utilisateurs de Ownest sont des grandes entreprises de distribution, de l'industrie ou de la logistique, qui répondent désormais à leurs problématiques de perte, vol et dégradation, tout en ayant une transparence totale de leur réseau logistique.\nLa solution Ownest a remporté de nombreux prix, tels que le Prix du Jury au SITL 2018, Prix Sirius 2018 ou le Trophée ECR de l’institut du commerce. Elle a également fait ses preuves sur l'utilisation terrain notamment dans les réseaux de grands groupes.\nNous sommes hébergés au Lafayette Plug and Play en plein cœur de Paris.\nMissions\nVous serez amené à travailler en collaboration avec le CTO et l'équipe back-end, et vous serez responsable de l’exécution d’une partie des évolutions du serveur et des fonctionnalités de l’API.\nCela mêlera plusieurs aspects/domaines :\nDéveloppement de routes API et gestion des middlewares\nImplémentation de modèles pour interagir avec la base de données (POO)\nMise en place de protections (résilience aux attaques)\nImplémentation de tests unitaires\nÉvolution de l'architecture de l'API et des serveurs\nCompétences attendues\nDomaines d’expertise:\n- Sécurité des systèmes d’information\n- Développement back-end rest API\n- Architecture logicielle et de base de données\nConnaissances requises:\n- Langages: bash/shell, JavaScript/TypeScript\n- Outils: Node.js, web3.js, git\n- Librairies: Express.js\n- OS: Linux, Mac\n- Serveurs: nginx\nLes plus:\n- Blockchain: Ethereum & Matic\nProfil recherché\nDomaines d’expertise:\nDéveloppement back-end rest API (Express.js, Nest.js)\nSécurité des systèmes d’information\nArchitecture logicielle et de base de données (Node.js, MongoDB)\nExpérience sur des projets JavaScript mêlant si possible MongoDB et Express.js. Personne autonome, polyvalente et rigoureuse.\nÀ l’aise techniquement avec de bonnes connaissances théoriques, notamment sur les aspects de sécurité dans le développement back-end.\nProcessus de recrutement\nLe processus de recrutement s'effectue en 3 étapes :\nUn entretien téléphonique pour faire connaissance (15-30 min)\nUn test TypeScript à distance (1h-2h)\nUn entretien de review de code + test logique (30min-1h)\nUne entrevue avec l'équipe peut également planifier après validation des précédents entretiens.\nDurée : 6 mois\nDate de début : Dès que possible\nNiveau d'étude / d'expérience : BAC+4 ingénieur\nType de contrat : Stage/Alternance\nPostuler","description_format":"text","description_chars":2629,"description_truncated":false,"requirements":{"experience_years_min":null,"management_years_min":null,"team_size_min":null,"manages_managers":false,"education":null,"security_clearance":false,"languages":[{"language":"French","level":"Advanced (C1)","optional":false}]},"benefits":[],"hiring_locations":[],"hiring_excludes":[],"relocation_offered":false,"industries":["Blockchain & Crypto","Blockchain Infrastructure","Supply Chain"],"lifecycle":[{"event":"open","at":"2026-10-11T12:42:45Z"}],"visa":[],"liveness":{"score":51,"band":"ok","label":"Likely open","p_open":0.9,"p_active":0.762,"p_room":0.75,"age_days":20,"expected_fill_days":24,"reasons":["conf:51","win:late"],"computed_at":"2026-11-01T06:10:25Z"},"pay":null,"html_url":"https://alion.io/job/ownest-developpeurse-back-end-node-js-stagealternance","json_url":"https://alion.io/job/ownest-developpeurse-back-end-node-js-stagealternance.json","meta":{"generated_at":"2026-11-01T08:43:35Z","cache_seconds":300,"methodology":"https://alion.io/methodology","terms":"https://alion.io/terms","contact":"https://alion.io/contact","api":"https://alion.io/developers","about":"Alion is a live layer of people, companies and AI agents: who they are, whether they are real and active right now, what they do and how to work with them, readable by people and by agents and paid per call.","catalog":"https://alion.io/catalog.json","usage":{"tier":"crawler_verified","counted_by":"address","units_charged":1,"used_today":13535,"day_limit":null,"remaining_today":null,"minute_limit":300,"resets_at":"2026-11-02T00:00:00Z"}},"offers":[{"id":"company.slices","title":"One company in depth, by slice","status":"live","price":{"credits":0.02,"usd":0.002,"plus_per_slice":{"credits":0.05,"usd":0.005}},"unit":"per company, plus each slice with data","note":"the employer in depth","call":{"mcp_tool":"get_company","arguments":{"id":4011184},"rest":"https://alion.io/mcp/rest/get_company?id=4011184"},"human":"https://alion.io/catalog?offer=company.slices&for=job%2Fownest-developpeurse-back-end-node-js-stagealternance"},{"id":"market.stats","title":"A market slice: pay, demand and time to fill","status":"live","price":{"credits":1,"usd":0.1},"unit":"per slice","note":"pay, demand and time to fill for this role and place","call":{"mcp_tool":"market_stats"},"human":"https://alion.io/catalog?offer=market.stats&for=job%2Fownest-developpeurse-back-end-node-js-stagealternance"},{"id":"job.search","title":"Open jobs by role, technology, place, pay and visa","status":"live","price":{"credits":0.02,"usd":0.002},"unit":"per posting in a list","note":"similar open postings","call":{"mcp_tool":"search_jobs"},"human":"https://alion.io/catalog?offer=job.search&for=job%2Fownest-developpeurse-back-end-node-js-stagealternance"},{"id":"company.verify","title":"Is this company real and active right now","status":"pilot","price":null,"unit":"per company","request":{"url":"https://alion.io/catalog/request","method":"POST","body":"{\"offer\": \"company.verify\", \"for\": \"job/ownest-developpeurse-back-end-node-js-stagealternance\", \"note\": \"what you need it for\"}"},"human":"https://alion.io/catalog?offer=company.verify&for=job%2Fownest-developpeurse-back-end-node-js-stagealternance"}],"agent":{"mcp":"https://alion.io/mcp/jobs","mcp_open":"https://alion.io/mcp/open","next":[{"tool":"get_job","arguments":{"id":2283669}},{"tool":"search_jobs","arguments":{"company":"ownest.io","detail":"compact"}},{"tool":"match_people","arguments":{"job_id":2283669},"note":"people open to offers who fit this vacancy"}],"note":"The same data through MCP tools: https://alion.io/mcp/open needs no sign-in (compact searches, postings, people); https://alion.io/mcp with an Alion account has everything. Docs: https://alion.io/developers"}}